Now that the semester has begun and students are back on campus, Amherst undergraduates are banding together to contribute to the Haiti relief effort. In an altruistic spin on the nearly 200-year-old rivalry, students are challenging their counterparts at Williams College to a friendly competition to see who can collect the most money in support of earthquake relief efforts in Haiti. Starting Feb. 5, the two liberal arts schools engaged in a weeklong fundraising contest, and the final results were tallied at halftime of the men’s basketball game between the colleges at Amherst on Feb. 12.